Metrics per run

https://en.wikipedia.org/wiki/Facebook

Tested 2026-04-12 22:00:29 using Firefox 148.0.2 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 434 ms 426 ms 427 ms 425 ms 407 ms426 ms424 ms9 ms2.12 %
First Contentful Paint 1.401 s 1.353 s 1.348 s 1.349 s 1.358 s1.353 s1.362 s20 ms1.46 %
Largest Contentful Paint 1.401 s 1.353 s 1.348 s 1.349 s 1.358 s1.353 s1.362 s20 ms1.46 %
Interaction to Next Paint 240 ms 256 ms NaN s 256 ms 264 ms256 ms254 ms9 ms3.43 %
Timing metrics
First Paint 1.401 s 1.352 s 1.347 s 1.348 s 1.357 s1.352 s1.361 s20 ms1.49 %
First Contentful Paint 1.401 s 1.353 s 1.348 s 1.349 s 1.358 s1.353 s1.362 s20 ms1.46 %
Largest Contentful Paint 1.401 s 1.353 s 1.348 s 1.349 s 1.358 s1.353 s1.362 s20 ms1.46 %
Load Event End 1.811 s 1.774 s 1.775 s 1.788 s 1.756 s1.775 s1.781 s18 ms1.02 %
Server Response Time 104 ms 104 ms 104 ms 105 ms 104 ms104 ms104 ms0 ms0.38 %
TTFB 434 ms 426 ms 427 ms 425 ms 407 ms426 ms424 ms9 ms2.12 %
Page Load Time 1.811 s 1.774 s 1.775 s 1.788 s 1.756 s1.775 s1.781 s18 ms1.02 %
First Visual Change 1.466 s 1.400 s 1.400 s 1.400 s 1.400 s1.400 s1.413 s26 ms1.87 %
Last Visual Change 3.466 s 3.633 s 9.733 s 3.600 s 3.600 s3.600 s4.806 s2.464 s51.26 %
Speed Index 1.496 s 1.432 s 1.576 s 1.432 s 1.432 s1.432 s1.474 s57 ms3.86 %
Visual Readiness 2.000 s 2.233 s 8.333 s 2.200 s 2.200 s2.200 s3.393 s2.471 s72.83 %
Visual Complete 95 1.466 s 1.400 s 1.400 s 1.400 s 1.400 s1.400 s1.413 s26 ms1.87 %
Visual Complete 99 2.466 s 2.433 s 9.733 s 2.466 s 2.433 s2.466 s3.906 s2.913 s74.58 %
CPU metrics
Browser metrics
CPU benchmark score 76 ms 76 ms 77 ms 78 ms 76 ms76 ms77 ms1 ms1.04 %
Page metrics
DOM elements 13649 13649 13649 13650 13649136491364900.00 %
Document height 51299 51299 51299 51299 51299512995129900.00 %
Total Requests 66 66 66 66 66666600.00 %
HTML Requests 1 1 1 1 11100.00 %
JavaScript Requests 7 7 7 7 77700.00 %
CSS Requests 2 2 2 2 22200.00 %
Font Requests 0 0 0 0 00000.00 %
HTTP Errors 0 0 0 0 0000N/A
Total Transfer Size 933.2 KB 933.2 KB 933.2 KB 933.2 KB 933.2 KB933.2 KB933.2 KB2 B0.00 %
HTML Transfer Size 200.7 KB 200.7 KB 200.7 KB 200.7 KB 200.7 KB200.7 KB200.7 KB0 b0.00 %
JavaScript Transfer Size 301.1 KB 301.1 KB 301.1 KB 301.1 KB 301.1 KB301.1 KB301.1 KB0 b0.00 %
CSS Transfer Size 27.5 KB 27.5 KB 27.5 KB 27.5 KB 27.5 KB27.5 KB27.5 KB0 b0.00 %
Font Transfer Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Favicon Transfer Size 2.0 KB 2.0 KB 2.0 KB 2.0 KB 2.0 KB2.0 KB2.0 KB0 b0.00 %
Plain Transfer Size 969 B 973 B 973 B 973 B 973 B973 B972 B2 B0.16 %
SVG Transfer Size 81.6 KB 81.6 KB 81.6 KB 81.6 KB 81.6 KB81.6 KB81.6 KB0 b0.00 %
Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
HTML Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
JavaScript Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
CSS Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Image Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Font Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Favicon Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Plain Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
SVG Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Third Party metrics
First Party metrics
First Party Requests 66 66 66 66 66666600.00 %
First Party Total Transfer Size 933.2 KB 933.2 KB 933.2 KB 933.2 KB 933.2 KB933.2 KB933.2 KB2 B0.00 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %